You must prepare 400mL of a solution that
requires a 1:8 concentration of
drug. Sterile water is the diluent
you should use.
How much drug do you need for
this medication?
How much dilvent do you need?

Sry i’m so bad at math! wish i could answer #imdumb

So don't take my word i'm not exactly a mathematical person but i would assume a. because while selling the soap every month you increase in sells so you would by 11 percent. the you would get the factor 0.89 which if i had to guess would be the monthly profit over 11 probably wrong tho

Ais right if u want more just write the common factors (the numbers that you multiply)